Quoting Calvin Wong (deadcat at freeshell.org):
> thanks rick,
>> i was unable to find much about the usb sound card. guess i will have
> to order another one.. )= paid $7 for that defective one.
>> as for the sd card. i haven't don't much research, but according to
>http://www.cyrius.com/debian/kirkwood/sheevaplug/ it should work. but
> most likely will install the os on a usb2 enclosure and use the sd
> card as hourly/daily/weekly backup of the system
Well, correct me if I'm wrong, but
http://www.cyrius.com/debian/kirkwood/sheevaplug/ seems to say merely
that Debian will work on a SheevaPlug and support its USB port
generically.
Whether any given USB device will then work on Linux when plugged _into_
that USB port -- such as the JMTek HY554 USB-connected external sound
card -- depends on whether the USB stack correctly recognises its
chipset and firmware, and whether the USB stack's able to pass along the
data to an appropriate software handler such as an ALSA driver.
Anyway, before you spring for another $7, you might want to at least
double-check with a mixer app, to make sure the HY554 doesn't merely
have its volume cranked all the way down.
If you _do_ have to order a new card, you might want to start with the
Linux-USB site's supported devices list, i.e., order only hardware known
and tested to work, rather than ordering first and checking for software
support afterwards. Works for Me.<tm>